Revert "layouttranslations: backport pt_BR additions and Arabic translation from master"

This reverts commit e44612f0f2.

Revert "layouttranslations: Arabic update by Hatim"

This reverts commit 407d5bf228.

It is not permitted to change lib/layoutranslations during a stable cycle.

lib/layouttranslations

@@ -7,31 +7,31 @@
 # For more comments see README.localization file.
 
 Translation ar
-	"Acknowledgement" "اعتراف بالجميل"
+	"Acknowledgement" "Acknowledgement"
 	"Algorithm" "الخوارزم"
 	"Assumption" "فرضية"
 	"Axiom" "مسلمة"
-	"Case" "حالة"
+	"Case" "Case"
 	"Chart" "جدول بياني"
-	"Claim" "مطلب"
+	"Claim" "Claim"
 	"Conclusion" "استنتاج"
 	"Condition" "شرط"
 	"Conjecture" "حدس"
 	"Corollary" "لازمة"
-	"Criterion" "معيار"
+	"Criterion" "Criterion"
 	"Definition" "تعريف"
 	"Example" "مثال"
 	"Exercise" "تمرين"
 	"Fact" "حقيقة"
-	"Graph[[mathematical]]" "رسم بياني[[رياضيات]]"
+	"Graph[[mathematical]]" "رسم بياني"
 	"Lemma" "قضية مساعدة"
 	"List of Algorithms" "قائمة الخوارزميات"
 	"List of Charts" "قائمة الجداول البيانية"
-	"List of Graphs[[mathematical]]" "قائمة الرسوم الرياضية[[رياضيات]]"
+	"List of Graphs[[mathematical]]" "قائمة الرسوم البيانية"
 	"List of Schemes" "قائمة المخططات"
 	"List of Tableaux" "قائمة الجداول"
-	"Listing" "قوائم"
-	"Listings[[List of Listings]]" "قوائم[[قائمة القوائم]]"
+	"Listing" "عمل قوائم"
+	"Listings[[List of Listings]]" "القوائم"
 	"Notation" "تدوين"
 	"Note" "ملاحظة"
 	"Problem" "مشكلة"
@@ -986,7 +986,7 @@ Translation pl
 	"Theorem" "Twierdzenie"
 End
 
-Translation pt_PT
+Translation pt
 	"Acknowledgement" "Agradecimento"
 	"Algorithm" "Algoritmo"
 	"Assumption" "Suposição"
@@ -1028,44 +1028,7 @@ Translation pt_PT
 End
 
 Translation pt_BR
-	"Acknowledgement" "Agradecimento"
-	"Algorithm" "Algoritmo"
-	"Assumption" "Suposição"
-	"Axiom" "Axioma"
-	"Case" "Caso"
-	"Chart" "Chart"
-	"Claim" "Afirmação"
-	"Conclusion" "Conclusão"
-	"Condition" "Condição"
-	"Conjecture" "Conjetura"
-	"Corollary" "Corolário"
-	"Criterion" "Critério"
-	"Definition" "Definição"
-	"Example" "Exemplo"
-	"Exercise" "Exercício"
 	"Fact" "Fato"
-	"Graph[[mathematical]]" "Graph"
-	"Lemma" "Lema"
-	"List of Algorithms" "Lista de Algoritmos"
-	"List of Charts" "Lista de Charts"
-	"List of Graphs[[mathematical]]" "Lista de Graphs"
-	"List of Schemes" "Lista de Esquemas"
-	"List of Tableaux" "Lista de Tableaux"
-	"Listing" "Listagem"
-	"Listings[[List of Listings]]" "Listagens"
-	"Notation" "Notação"
-	"Note" "Nota"
-	"Problem" "Problema"
-	"Proof" "Prova"
-	"Property" "Propriedade"
-	"Proposition" "Proposição"
-	"Question" "Pergunta"
-	"Remark" "Observação"
-	"Scheme" "Esquema"
-	"Solution" "Solução"
-	"Summary" "Resumo"
-	"Tableau" "Tableau"
-	"Theorem" "Teorema"
 End
 
 Translation ro